Battery charger



FIG. 1 is a perspective view of a battery charger.

FIG. 2 is a front view of the battery charger.

FIG. 3 is a back view of the battery charger.

FIG. 4 is a left view of the battery charger.

FIG. 5 is a right view of the battery charger.

FIG. 6 is a top view of the battery charger; and,

FIG. 7 is a bottom view of the battery charger.

In the drawings, the broken lines are for the purpose of illustratingportions of the battery charger that form no part of the claimed design.

CLAIM The ornamental design for a battery charger, as shown anddescribed.